JP2002223401A - Data processing method for digital camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data processing method for a digital camera that relieves a processing load at reproduction. SOLUTION: In the case of recording image files and independent audio files, an image file name consisting of a file name of a prescribed form including a file number, which is increased in the order of recording, and of an image file extender is given to the files. In the case of recording an audio file, an audio file name consisting of a file name of a prescribed form including a file number and of an image file extender is given to the audio file. In the case of recording an image file while relating it with an audio file, the file name of the image file corresponding to the file name of the audio file is given the same. Whether an audio file is a related audio file or an independent audio file is discriminated depending on whether or not there is an image file with the same file name as that of the audio file name in a recording directory and the files are reproduced according to the file numbers of the image files and the independent audio files.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital camera.

[0002]

2. Description of the Related Art Digital cameras that convert an image photographed by an image sensor such as a CCD image sensor into image data and record and store the image data on a recording medium such as a memory card are widely used. Images recorded on a memory card or the like can be reproduced on a liquid crystal display (hereinafter, referred to as an LCD) provided in the digital camera. In addition, a digital camera having a voice memo function for recording and playing back audio data as an audio file associated with an image file in addition to an image file, and a voice recorder function for recording and playing back as an independent audio file are available. Are known.

[0003]

By the way, when the image file and the audio file are recorded in separate directories on the recording medium for the purpose of file management as described above, It is necessary to record link information indicating the correspondence between the image file and the audio file on a recording medium. For this reason, there is a disadvantage that the data size to be recorded on the recording medium increases, and it is necessary to read and analyze the link information at the time of reproduction, which causes a problem that a processing load at the time of reproduction increases. In addition, in order to select and play back the image file and the independent audio file in the order of shooting and recording without separating the image file and the independent audio file in consideration of the operability of the user, the time information is recorded when the image file and the audio file are recorded. In such a case, it is necessary to perform processing such as rearranging the image file and the independent audio file based on the time information of each file during reproduction. Therefore, also in this case, a problem such as an increase in processing load occurs.

On the other hand, even when an image file and an audio file are recorded in the same directory, if the link information indicating the correspondence between the image file and the audio file is recorded, an increase in data size cannot be avoided. Processing such as analysis of link information needs to be performed, and the processing load is high.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has been made in consideration of a reproducing process without increasing the size of data recorded on a recording medium and without sacrificing user operability. It is an object of the present invention to provide a data processing method for a digital camera in which the load of time is reduced.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a file number of each image file and audio file recorded in a recording directory is assigned to an image file. The file number is determined so that it does not overlap with the file name, an image file name consisting of a file name of a predetermined format including this file number and an image extension is added and recorded. And an audio file name consisting of a file name of the predetermined format and an audio extension, and in the audio memo mode, the same file name as the corresponding image file as a file name of the audio file, and the corresponding image file Record in the same recording directory as
In the audio record mode, the file numbers are determined so that the file numbers do not overlap with the file numbers of the image files and the audio files recorded in the recording directory. When an image file and an audio file having the same file name are recorded in the same recording directory, the image file and the audio file are processed as files that are associated with each other. When an image file having the same file name as an audio file is not recorded in the same directory, the audio file is processed as a file recorded in the audio record mode.

According to the second aspect of the invention, every time an image file and an audio file in the audio record mode are recorded,
The file number of the image file to be recorded next or the audio file in the audio record mode is increased by "1".

According to the third aspect of the present invention, when an audio file recorded in the audio record mode is selected, an audio image prepared in advance is displayed on a monitor for reproducing the image.

According to the present invention, when an instruction to delete the file is displayed while the image corresponding to the image file is being displayed, the image file corresponding to the displayed image is deleted from the recording medium, and the audio file is deleted. When deletion of a file is instructed during display of the image for use, the corresponding audio file is deleted from the recording medium.

According to the invention described in claim 5, there is provided a thumbnail mode for displaying a plurality of thumbnail images corresponding to the image of the image file on a monitor for reproducing the image. A thumbnail image of an audio image is displayed for an audio file.

According to the invention described in claim 6, when an image file is deleted, audio files having the same file name in the same directory where the image file is recorded are simultaneously deleted.

According to the present invention, an audio file associated with an image file and exceeding a predetermined file size is processed as an error.

[0013]

1 is a front view of a digital camera embodying the present invention, and FIG. 2 is a rear view thereof. On the front surface of the camera body 2, an opening 4 for projecting the lens barrel 3, an objective window 5a of the optical viewfinder 5, a strobe light emitting unit 6, a release button 7, a self-timer LED 8, and a microphone opening 9 for recording are arranged. ing. On the back, an eyepiece side window 5b of the finder 5, an LCD 10, an operation unit 11, and a speaker opening 12 for sound reproduction are provided.

A cover 14 is provided on the side of the camera body 2 so as to be freely opened and closed. By opening the lid 14, the memory card 16 can be inserted into and removed from the memory slot 15. In the inserted memory card 16,
Image files and audio files are written.

The lens barrel 3 incorporates a photographing lens 20. When the digital camera is turned on by operating the operation unit 11, the photographing lens 20 projects forward from the retracted position shown in the figure. It is extended to the position. When the release button 7 is pressed, an image of one frame being captured is captured by the CCD image sensor 21 (see FIG. 4) disposed behind the photographic lens 20, and the obtained image data is stored in the memory. The image is recorded and stored on the card 16 as an image file. Further, in a voice recording mode to be described later, the start and stop of recording can be instructed by pressing the release button 7.

When the self-timer is operated in the photographing mode, the LED 8 blinks during the operation of the self-timer. The LED 8 blinks while recording the voice to notify the user that the recording is being performed.

A microphone 22 (FIG. 4)
The speaker 2 is located behind the speaker opening 12.
3 (see FIG. 4). Sound such as environmental sound or voice is recorded using the microphone 22, and sound data obtained by the recording is recorded and stored in the memory card 16 as a sound file. When the stored audio data is reproduced, the reproduced sound is output from the speaker 23.

Looking into the optical viewfinder 5,
The photographing range can be observed. The LCD 10 constitutes a so-called electronic viewfinder that displays a subject image photographed through the photographing lens 20 in real time, and is used for image reproduction and the like.

By operating the operation unit 11, in addition to turning on / off the power, switching between a photographing mode, a voice record mode, and a reproducing mode, selection of a normal mode and an auto memo mode in the photographing mode, and audio in the reproducing mode. Perform settings under various modes such as selection of memo mode, select files to be played, delete files, instruct to start and stop audio playback, and instruct recording start and stop in audio memo mode described later. Can be.

Under the photographing mode, a normal mode and an auto memo mode can be selected. In the normal mode, only the image file obtained by the photographing after the photographing is completed is recorded on the memory card 16. In auto memo mode,
Immediately after the photographing is completed, the mode automatically shifts to the voice memo mode under the photographing mode, and the sound file is associated with the image file recorded by the photographing immediately before the photographing mode.
6 is recorded.

When the audio memo mode is selected in the reproduction mode, the audio file is already stored in the memory card 16 and recorded in association with the image file selected in the reproduction mode. In the audio record mode, only the audio file is recorded on the memory card 16 without associating the audio file with the image file. The maximum recordable time is, for example, 30 seconds in the voice memo mode and 1 hour in the voice record mode.

In the following description, when the audio file recorded in the audio record mode and the audio file recorded in the audio memo mode are particularly distinguished, the former is called an audio record file, and the latter is called an audio memo file. Name.

In the reproduction mode, an image file and a sound record file stored in the memory card 16 can be selected by operating the operation unit 11. When an image file is selected, the image of the selected image file is displayed on the LCD 10, and as a result, the reproduction and selection of the image file are performed simultaneously. When an audio record file is selected, as shown in FIG. 3, a prepared audio image 25 and a file number 26 included in the audio file name of the audio record file are displayed on the LCD 10. Thus, the audio record file can be visually selected. Actually, the file number is displayed on the LCD 10 even when an image file is selected, and the file number is not displayed after an appropriate time has elapsed.

When an image file associated with the audio file is selected, that is, when an image of the image file corresponding to the audio memo file is displayed on the LCD 10, an instruction to reproduce audio is issued, so that the displayed image is displayed. The voice memo file corresponding to is played. By instructing sound reproduction while the sound image 25 is being displayed on the LCD 10, selection is made, that is, the LCD 10 is displayed.
Of the audio record file indicated by the file number 26 displayed in the file is reproduced.

In the reproduction mode, by instructing deletion while the image is displayed on the LCD 10, the image file corresponding to the image being displayed is deleted from the memory card 16. When the voice memo file corresponding to the image file to be deleted is stored in the memory card 16 at the time of this deletion, this voice memo file is also deleted at the same time. By instructing erasure while the audio image 25 is displayed on the LCD 10, the audio record file indicated by the file number 26 displayed on the LCD 10 is erased.

FIG. 4 shows an electric configuration of the digital camera.
Shown in The microcomputer 30 controls each section of the digital camera in response to an operation signal input from a key input section 31 including the release button 7 and the operation section 11, and records image files and audio files on the memory card 16.・ Read out.

The microcomputer 30 has an RO
M30a and RAM 30b are connected. ROM30
In b, a sequence program for controlling the digital camera and a sequence program for storing image files and audio files in the memory card 16 are stored. The microcomputer 30 stores the ROM 30
It operates according to the sequence program of b. RA
The M30b is used as a work memory for temporarily storing data necessary for executing a sequence.

A CCD image sensor 21 is arranged behind the taking lens 20. CCD image sensor 21
Is driven by a driver 33, converts an optical subject image into an electric photographing signal, and outputs the signal. Micro color filters of R, G, and B are arranged in a matrix on a light receiving surface of the CCD image sensor 21. A photographing signal serially output for each color is amplified by an amplifier 34 to an appropriate level. The digital data is converted by the A / D converter 35 into image data including luminance data and color difference data.

The microcomputer 30 performs white balance adjustment, gamma correction, and the like on the image data from the A / D converter 35, and performs interpolation processing to generate image data for one frame. In the shooting mode, the processed image data is sequentially sent to the LCD driver 37 via the D / A converter 36. With this, LCD
In 10, a subject image being photographed is displayed as a moving image.

When the release button 7 is pressed in the shooting mode, the microcomputer 30 displays
By writing the image data for one frame into the internal memory 38, the image file for one frame is stored in the internal memory 3.
8, and then compresses the image file in the built-in memory 38 and writes it to the memory card 16 mounted in the memory slot 15.

The microphone 22 converts a voice into a voice signal and outputs it. After the audio signal is amplified by the amplifier 41,
The data is converted into audio data by the A / D converter 42 and sent to the microcomputer 30. The microcomputer 30 temporarily stores audio data obtained by one recording as an audio file in the built-in memory 38, and then writes the audio file to the memory card 16.

As the memory card 16, a card formatted in a predetermined format is used. It should be noted that the digital camera can be mounted on a digital camera to perform formatting. As shown in FIG. 5, in this digital camera, image files and audio files are recorded in a recording directory created immediately below the top directory of the memory card 16.

In the playback mode, the built-in memory 38
The image file and the audio file read from the memory card 16 are written. The image data sequentially read from the image file on the internal memory 38 by the microcomputer 30 is sent to the D / A converter 36, so that the image stored in the memory card 16 is displayed on the LCD 10 as a still image. . Further, the microcomputer 30 sequentially reads out audio data from the audio file on the internal memory 38, and
By being sent to the amplifier 47, the sound of the sound file stored in the memory card 16 is output from the speaker 23.

The voice record file is stored in the memory card 16
From the microcomputer 30
Sends the prepared image data for audio to the D / A converter 36. Thereby, the audio image 25 is displayed on the LCD 10 when the audio record file is selected and reproduced. The audio image data is written in the ROM 30a in advance.

When recording an image file, the microcomputer 30 stores an image file name including a file name in a predetermined format including a file number and an image extension,
For example, “ABCDXXXX.JPG” is given. When recording an audio file, an audio file name including a file name in a predetermined format including a file number and an image extension, for example, “ABCDXXXX.WAV” is added.

The above "ABCDXXXX.JPG" and "ABCDXXXX.W"
“AVCD” is a file name of “AV”, “JPG” after “.” Is an image extension, and “WAV” is an audio extension. Also, if "XXXX" in the file name is "00
It is a file number consisting of four digits from "01" to "9999". Further, “ABCD” in the file name is appropriately determined in advance and is fixedly used in common for the image file and the audio file.

The reason why "JPG" is used as the image extension is that the image file is stored in the JPEG format, and "WAV" is used as the audio extension. This is because the audio file is stored in the WAV format. Therefore, when an image file and an audio file are used in another file format, a file corresponding to the file format may be used. Further, as the file name, another format may be adopted as long as the file name includes the file number.

The RAM 30b stores the latest file number used when recording either the image file or the audio record file on the memory card 16 as the current file number. The next time you record either an image file or an audio record file,
The microcomputer 30 generates an image file name and an audio file name by using the value obtained by adding “1” to the current file number stored in the RAM 30b as the file number of the file name.

By assigning the image file name and the audio file name in this manner, the file numbers of the image files and the audio record files already recorded in the recording directory are not duplicated, and For the audio record file, the file number in the file name is made larger in the order of recording time. It should be noted that the image file and the audio record file are deleted, and the missing file numbers are not used.

When recording the voice memo file, the microcomputer 30 gives the same file name as that of the corresponding image file with an extension for voice added as the voice file name, and the same as the corresponding image file. By recording the voice memo file in the recording directory, the voice memo file is associated with the image file. Thus, the audio file corresponding to the image file can be determined without recording the link information or the like as data on the memory card 16 and without analyzing the link information during reproduction.

For various files stored in the memory card 16, the microcomputer 30 distinguishes image files and audio files by extension. Further, when an image file and an audio file having the same file name are stored in the recording directory, the processing is performed assuming that the image file and the audio file are associated with each other, and the audio file is processed. If an image file having the same file name as that of the audio file is not recorded in the recording directory, the audio file is processed as a single audio file recorded in the audio record mode.

The microcomputer 30 controls the order of selection and reproduction of these files based on the image file name given to the image file and the audio record file and the file number in the audio file name.

Next, the operation of the above configuration will be described. When the power is turned on, a mode check is performed, and the operation branches to one of an imaging mode, an audio record mode, and a reproduction mode in accordance with an operation input from the operation unit 11. Note that even after branching to any one of the modes, it is possible to shift to another mode by operating the operation unit 11.

In the photographing mode, the image data of the subject photographed by the CCD image sensor 21 is continuously transferred to the microcomputer 3 as in the case of the conventional digital camera.
0 and the processed image data is sent to the D / A converter 36.
Through the LCD driver 37. This allows
The subject image being captured is displayed on the LCD 10 as a moving image.

For example, when saving the subject image as an image file, after selecting either the normal mode or the auto memo mode in the shooting mode, the framing is performed by observing the LCD 10 or looking through the finder 5. Then, the release button 7 is pressed. As shown in FIG. 6, when the release button 7 is pressed, the image data of one frame being photographed at that time is written as an image file in the built-in memory 38 by the microcomputer 30, and the image file is compressed. You.

Next, the microcomputer 30 sets the RA
M30b is accessed to obtain the current file number at the present time, and the value obtained by adding “1” to the current file number is set as the file number used for the image file name. Then, a file name is generated using this file number, and the image file in the internal memory 38 is written to the recording directory of the memory card 16 with the image file name obtained by adding the image extension “JPG” to the file name. .

After writing the image file, it is checked whether the auto memo mode has been selected. If the auto memo mode has not been selected, the sequence for shooting is ended after updating the current file number in the RAM 30b, and the camera enters a standby state for a release operation in the shooting mode.

For example, if the current file number at the time of shooting is “0005”, the file number is “000”.
6, the image file to be written to the memory card 16 is given an image file name “ABCD0006.JPG”, and the current file number on the RAM 30b is “0006”.
Will be updated to

When the user presses the release button 7 and performs photographing again, image files are written to the recording directory in the same procedure as described above. At this time, immediately after the image file with the image file name “ABCD0006.JPG” is written, the current file number is “0006”, so “ABCD0007.JPG” is given as the image file name. The current file number on the RAM 30b is “0007”.

On the other hand, when the auto memo mode is selected, the mode shifts to the voice memo mode under the photographing mode immediately after writing the image file. The photographer operates the operation unit 11
To start recording, for example, speak toward the microphone opening 9 to record information on the photographed subject.

The voice is converted to a voice signal by the microphone 22 and further converted to voice data by the A / D converter 42.
The audio data is sequentially written to the built-in memory 38 by the microcomputer 30. Then, the recording is stopped when the photographer operates the operation unit 11 to instruct the stop of the recording or when 30 seconds have elapsed from the start of the recording. As a result, the audio file for one recording is written into the built-in memory 38.

After the recording is stopped, the audio file on the built-in memory 38 is written by the microcomputer 30 into the recording directory of the memory card 16. At the time of writing, an audio file name is added to the audio file by adding an audio extension to the same file name as the image file recorded on the memory card 16 immediately before. Then, after completing the writing of the audio file, the RAM
After the current file number of 30b is updated, the camera enters a standby state for a release operation in the shooting mode.

For example, immediately after the writing of the image file with the image file name "ABCD0008.JPG", the audio file written in the voice memo mode automatically shifted, ie, the audio memo file, has the audio file name "ABCD0008.WAV". Granted. Then, the current file number of the RAM 30b is updated to “0008”.

When recording only a voice file, the user operates the operation unit 11 to select a voice record mode, and then
Pressing the release button 7 starts recording. FIG.
When the release button 7 is pressed in the voice record mode, the voice input to the microphone 22 is converted into voice data and transmitted to the built-in memory 38 via the microcomputer 30 as described above. Written.

Recording is stopped by the photographer pressing the release button 7 again to stop recording, or the recording is stopped when one hour has elapsed from the start of recording, and the sound file for one recording is stored in the built-in memory 38. Is written. Thereafter, the microcomputer 30 obtains the current file number at the present time, adds “1” to the current file number, sets the file number as a file number, and generates an audio file name using this file number.
Then, the audio file name is given, and the audio file on the built-in memory 38 is written to the recording directory of the memory card 16. After this write is completed, RA
After the current file number on M30b has been updated, the operation waits for a release operation in the voice record mode.

Thus, for example, if the current file number is “0010”, the file number becomes “001”.
1 ", and an audio file whose audio file name is" ABCD0011.WAV ", that is, an audio record file, is written to the recording directory. Then, the current file number is updated to “0011”.

In the image file and the audio record file stored in the memory card 16 in this manner, the file number in the file name becomes larger as the file number becomes newer. Image files and audio record files can be selected and played back in chronological order without increasing the processing load.

When an audio file is associated with an image file already stored in the memory card 16 and stored, the image to be associated in the playback mode is displayed on the LCD.
In a state where the image is displayed (reproduced) at 10, that is, when one image file in the recording directory is selected, the voice memo mode is instructed.

When the voice memo mode is instructed in the reproduction mode, as shown in FIG. 8, the apparatus waits for an instruction to start recording.
Next, the user operates the operation unit 11 to start recording. As in the voice memo mode in the shooting mode, the voice signal from the microphone 22 is converted into voice data, and this voice data is written into the built-in memory 38, and once the recording is stopped, once into the built-in memory 38. Is recorded.

Thereafter, the audio file on the built-in memory 38 is transferred to the memory card 1 by the microcomputer 30.
6 is written to the recording directory. At the time of writing, when the voice memo mode is selected, the microcomputer 30 gives the voice file a voice file name obtained by adding a voice extension to the same file name as the selected image file.

For example, if the voice memo mode is selected while the image file with the image file name “ABCD0015.JPG” is selected, the voice file obtained in the voice memo mode includes:
“ABCD0015.WAV” is given as the audio file name.
If an audio file having the same file name as the image file name is stored, it is overwritten and stored.

As described above, the image file and the audio file are recorded while the mode is appropriately selected. When recording an image file and an audio record file, a file name is generated using a file number obtained by increasing the current file number by “1”, and the current file number is updated to a new one each time it is recorded. So
There is no image file and audio record file recorded in the recording directory with the same file name. The newer the image file and the sound record file recorded in the recording directory, the larger the file number in the file name.

Further, since the voice memo files are associated with each other by recording them in the recording directory with the file names in the voice file names being the same as the corresponding image files, these image files are associated with the voice memo files. It is not necessary to record data for associating with a file on a memory card, nor is it necessary to record data for distinguishing a voice memo file from a voice record file. Note that the image file name and the audio file name are necessary for recording each file, and even if the image file name and the audio file name are given as described above, the extra capacity of the memory card 16 is added. I do not use it.

When reproducing image files and audio files stored in the memory card 16, the operation section 11 is operated to select a reproduction mode. When the reproduction mode is selected, the microcomputer 30 acquires the current file number from the RAM 30b and sets the current file number as the reproduction file number, as shown in an example of the procedure in FIGS. Then, it is determined whether or not an image file having an image file name having the extension “JPG” and including the reproduction file number in the file name is stored in the recording directory of the memory card 16.

If the image file is not stored in the recording directory, a sound file having a sound file name having a reproduction file number in the file name and an extension of “WAV” is stored in the memory card 16. Check whether it is stored in the directory for recording. That is, it is determined whether or not the audio record file having the audio file name is stored in the recording directory.

If there is no audio file with such an audio file name, it is determined whether or not an image file with an image file name and an audio file with an audio file name whose playback file number is reduced by "1" are stored. Check sequentially.

In this way, the playback file number is decreased by "1" until an image file or an audio file containing the playback file number in the file name is found, and the file having the first matching file name is found. Is read.

When an image file is read in the above reading, the image of this image file is
Is displayed, it is checked whether an audio file having the same file name is stored in the recording folder. For example, if an audio file having the same file name is not stored, the process waits for an instruction of an audio memo mode, erasure, and frame advance.

On the other hand, if an audio file having the same file name is stored,
Determines that the voice memo file corresponding to the image file is stored, confirms that the voice memo file is smaller than a specified size corresponding to the file size of 30 seconds of recording time, and then stores it in the memory. The data is read from the card 16 and written into the built-in memory 38.

As described above, since the presence or absence of an associated file is determined based on the image file name and the audio file name, the load of this processing is small.

After that, for example, it is displayed that the voice memo file is recorded on the image being displayed on the LCD 10, and then the instruction for voice reproduction, voice memo mode, erasure, and frame advance is awaited. Here, when the operation unit 11 is operated to give an instruction for audio reproduction, the audio data is sequentially read from the audio file in the built-in memory 38 and sent to the D / A converter 46 so that the currently displayed audio data is displayed. The sound recorded in association with the image is reproduced by the speaker 23.

When the file size of the voice memo file is checked, if the file size is not smaller than the specified size, it is determined that the file is inappropriate as a voice memo file, and error processing, for example, the LCD 10
Indicates that it is inappropriate as a voice memo file,
The voice memo file is not read from the memory card 16.

If the file names of the image files do not match,
When an audio file is read out, an image file having the same file name as the audio file is not stored in the recording directory.
0 determines that the audio file is recorded in the audio record mode, that is, an audio record file.
Therefore, the processing load is small because it can be determined as an audio record file only by the absence of the image file having the same file name as the audio file in the recording directory.

In this case, after the audio record file is written into the built-in memory 38, the audio image data is read from the ROM 30a, and the audio image data is sent to the D / A converter 36. Thereby, the audio image 25 is displayed on the LCD 10 as shown in FIG. The LCD 10 displays the file number 26 in the audio file name of the currently selected audio record file together with the audio image 25. The user can know that the audio record file is selected by displaying the audio image 25.

After the display of the audio image 25, audio reproduction,
When an instruction for erasure and frame advance is awaited and an instruction for audio reproduction is issued, audio data is read out from an audio recorded file in the built-in memory 38 and sent to the D / A converter 46 so that audio is output from the speaker 23. Is output.

When frame operation is instructed in the reverse direction by operating the operation unit 11 while displaying the image of the image file or the audio image 25, the file number which is smaller by 1 than the file number of the currently selected file is displayed. The presence or absence of the storage of the image file and the audio file having "." Is checked. If neither of them is stored, the file number is further reduced and the presence or absence of the storage of the image file and the audio file is checked. If the corresponding file is stored, one or both of the image file and the audio file are read out in the same procedure as described above, and the image of the image file or the image for audio 25 is displayed. Note that, when frame forward in the forward direction is instructed, the file number is increased by “1” in the above procedure.

When erasing an image file, the operation section 11 is operated to instruct erasure while the image to be erased is displayed on the LCD 10 in the reproduction mode, that is, while the image file is selected. When the erasure instruction is given, as shown in FIG.
Deletes the selected image file and checks whether an audio file with the same file name as the image file is stored in the recording directory.If the corresponding audio file is stored, Also delete it. Thus, the voice memo file associated with the image file to be deleted can be deleted without bothering the user.

When deleting the voice record file, the voice record file is deleted by instructing deletion while the file number of the voice record file and the voice image 25 are displayed on the LCD 10. .

In the example shown in FIG. 11, a plurality of thumbnail images (for example, 160 × 1
20 pixels) are arranged in a time series, and the LCD 10 is arranged in a matrix.
In this example, a thumbnail mode is provided for displaying a thumbnail image 25a for audio in a portion corresponding to an audio record file in this thumbnail mode. According to this, the audio record file can be visually selected even when displaying the thumbnail image.

In each of the above embodiments, an example has been described in which image files and audio files are recorded in one recording directory created immediately below the top directory of the memory card. However, for example, the top directory of the memory card may be used as the recording directory.

FIG. 13 shows an example in which a subdirectory having a predetermined name is created immediately below the top directory of the memory card, and a plurality of recording directories are created in this subdirectory.

In this example, a new recording directory is created when the file number of the file recorded therein has reached the maximum value or when the current file number has reached the maximum value. When recording a new image file and a new sound record file, they are recorded in the new recording directory.

In the case where a plurality of recording directories are used in this manner, each time a new recording directory is created, the image file name, the image file name, and the like are stored in the created recording directory as in the first embodiment. In addition to performing recording by giving an audio file name and recording an audio file with an image file, regardless of the recording directory currently used for recording, the audio file is stored in the same recording directory as the corresponding image file. Write.

If an image file and an audio file having the same file name are stored in the same recording directory, they are processed as being associated with each other, and an image file having the same file name as the audio file is not stored. In this case, the audio file is processed as if it was recorded in the audio record mode.

For example, as shown in FIG. 13, the image file name “ABCD00” in the recording directory “101EFGH”
2.When a sound file is associated with an image file of "JPG" and saved, the target sound file is given the sound file name "ABCD002.WAV" and recorded in the recording directory "101EFGH". .

Further, in the recording directory "100EFGH", an image file having an image file name "ABCD004.JPG" and an audio file having an audio file name "ABCD004.WAV" are stored. Image file name "ABCD004.JPG" in the recording directory "100EFGH"
Is processed as a voice memo file corresponding to "." On the other hand, the audio file having the audio file name "ABCD004.WAV" in the recording directory "101EFGH" is stored in the recording directory "101EFGH" in the image file name "ABCD004.JPG".
Since no image file is stored, it is processed as an audio record file.

The directory number is added to the created recording directory so that the value increases in the order of creation.
("100", "101" ...)
FGH "and" 101EFGH ", and at the time of reproduction, selection is made in order from the newest one of the recording directories, that is, in order from the one with the largest directory number, and in the order of the file number in the selected recording directory. By sequentially reading the files, the files can be selected and reproduced in the order of recording without separating a plurality of recording directories.

[0088]

As described above in detail, according to the present invention, an image file is provided with an image extension, and a sound file is provided with a sound extension, and is stored in the recording directory. Make sure that the file name of the image file and the audio file in the audio record mode are not duplicated, and that the file name of the audio file in the audio memo mode is the same as the image file and is recorded in the same recording directory as the image file. , An image file and an audio file are distinguished by an extension, and an image file and an audio file having the same file name in the same directory are processed as a file associated with each other, and the same file name as the audio file is used. When an image file is not recorded in the same directory, Since the file is processed as a file recorded in the record mode, the correspondence between the associated image data and audio data can be provided without increasing the data size, and the processing load at the time of reproduction can be reduced. .

Further, every time an image file and an audio file in the audio record mode are recorded, the file number of the image file to be recorded next or the audio file in the audio record mode is increased by "1". The processing load at the time of reproduction can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a front appearance of a digital camera embodying the present invention.

FIG. 2 is a perspective view showing a rear appearance of the digital camera.

FIG. 3 is an explanatory diagram showing a display example of an audio image.

FIG. 4 is a block diagram illustrating a configuration of a digital camera.

FIG. 5 is an explanatory diagram showing a recording state of a memory card.

FIG. 6 is a flowchart illustrating a processing procedure in a shooting mode.

FIG. 7 is a flowchart showing a recording procedure of an audio file in an audio record mode.

FIG. 8 is a flowchart showing a recording procedure of an audio file in an audio memo mode in a reproduction mode.

FIG. 9 is a flowchart showing a processing procedure in a reproduction mode.

FIG. 10 is a continuation of the flowchart in FIG. 9;

FIG. 11 is a flowchart illustrating a procedure for deleting a file.

FIG. 12 is an explanatory diagram showing a thumbnail display state of an audio image in a thumbnail mode.

FIG. 13 shows an example in which a plurality of recording directories are provided.

[Explanation of symbols]

 Reference Signs List 10 LCD 16 Memory card 20 Shooting lens 21 CCD image sensor 22 Microphone 23 Speaker 25 Audio image 25a Audio thumbnail image 30 Microcomputer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/91 H04N 101: 00 // H04N 101: 00 5/91 RNF term (Reference) 5B082 AA13 EA01 EA09 5C022 AA13 AC03 AC12 AC32 AC42 AC52 AC71 AC72 5C052 AA17 AB04 AC08 DD02 DD04 GA02 GA03 GB01 GB07 GB09 GC03 GD03 GE08 5C053 FA05 FA08 FA10 FA14 FA27 GB06 GB11 HA30 JA07 JA16 JA21 KA04 KA24 KA25 KA25 LA01

Claims (7)

[Claims] 1. An audio memo mode for recording image data as an image file and audio data as an audio file in a recording directory of a recording medium, associating the image file with the audio file, and recording only the audio file. In the data processing method of a digital camera having a recording mode for recording a voice, a file number is determined for an image file so as not to overlap with a file number of each image file and audio file recorded in a recording directory. Then, recording is performed by adding an image file name including a file name of a predetermined format including the file number and an extension for an image, and for an audio file, the file name of the predetermined format including a file number is included. An audio file name consisting of an extension for audio is given, In the mode, the same file name as the corresponding image file is recorded as the file name of the audio file in the same recording directory as the corresponding image file.In the audio record mode, each image file recorded in the recording directory is recorded. Determine the file number so that it does not overlap with the file number of the audio file and record it.After recording, image files and audio files are distinguished by extension and have the same file name in the same recording directory When an image file and an audio file are recorded, the image file and the audio file are processed as a correlated file, and an image file with the same file name as the audio file is recorded in the same directory. If the audio file is not recorded, Digital camera data processing method, characterized by treating the recorded file by chromatography mode. 2. The file number of an image file to be recorded next or an audio file in an audio record mode is incremented by "1" every time an image file and an audio file in the audio record mode are recorded. Digital camera data processing method. 3. The digital camera according to claim 1, wherein when an audio file recorded in the audio record mode is selected, an audio image prepared in advance is displayed on a monitor for reproducing the image. Data processing method. 4. When an instruction to delete a file is displayed while an image corresponding to an image file is being displayed, the image file corresponding to the image being displayed is deleted from the recording medium, and during the display of the audio image, 4. The data processing method for a digital camera according to claim 3, wherein when an instruction to delete the file is issued, the corresponding audio file is deleted from the recording medium. 5. A thumbnail mode for displaying a plurality of thumbnail images corresponding to the image of the image file on a monitor for reproducing the image. 5. The data processing method for a digital camera according to claim 1, wherein a thumbnail image of the image for use is displayed. 6. The image file according to claim 1, wherein at the time of erasing the image file, audio files having the same file name in the same directory where the image file is recorded are simultaneously deleted. The data processing method of the digital camera according to the paragraph. 7. The data of the digital camera according to claim 1, wherein an audio file that is associated with the image file and exceeds a predetermined file size is processed as an error. Processing method.